Drilling Tools

We have in store for our clients, Dynadrill O-Dex systems for DTH hammers that are specially designed to drill and case simultaneously through overburden. These durable overburden drilling tools easily pass through large boulders for pulling lightweight wherein inexpensive casings are incorporated behind them. These overburden drilling tools are easy to remove from the hole/ depth and are provided to our clients in the following technical specifications :

O-Dex type	Casing, Recom.	Min. Wall		Max. Drill bit	Reaming
	Size MM Max OD/Min. ID	Thickness mm		Diameter MM	Diameter MM
90	115/102	5		90	123
115	142/128	5		115	152
140	171/157	5		140	187
165	196/183	5,5		165	212
180	219/194	6,3		180	232
190	222/205	6,3		190	237
215	257/241	6,3		215	278
230	270/250	6,3		230	286
240	273/260	6,3		240	306
280	327/305	7,1		280	370

Offered in “Prithvi Series”, our 4th generation DTH hammers are provided to our clients in various specifications. We have eliminated foot valve in the button bit of these DTH hammers which is the potential trouble maker when the drilling is in deep depth. This makes these DTH hammers hold the following features :

• Suitable for high pressure drilling rigs
• Water well drilling
• Record breaking penetration
• Bench drilling
• Exploring Civil Engineering Applications
• Lowest cost per foot drilled
• Mining /Mineral Exploration
• Simple & robust design
• Exploring Civil Engineering Applications
• Oil well drilling
• Foot Valve not required in the bit
• Longer parts life
• Maximizes efficiency
• Develops greater power for any compressor capacities
• Penetrate 15% to 30% faster
• Provides additional production at a lower unit cost

 
The models provided in this range and their specifications are enumerated as such :

• DYNADRILL PRITHVI 30 for drilling 3 1/2" to 4" in hard rock and 5" to 6" in over burden drilling
• DYNADRILL PRITHVI 40 for drilling 4.1/8" to 5" in hard rock and 6" to 7" in over burden drilling
• DYNADRILL PRITHVI 60 / 65 for drilling 6" to 6.1/2" in hard rock and 8" to 9" in over burden drilling
• DYNADRILL PRITHVI 80 for drilling 8" to 8.1/2" in hard rock and 10" to 12" in over burden drilling
• DYNADRILL PRITHVI 100 for drilling 10" to 10.1/2" in hard rock and 12" to 14" in over burden drilling
• DYNADRILL PRITHVI 120 for drilling 12" to 12.1/2" in hard rock and 13" to 17.1/2" in over burden drilling